Several terrorist attacks and assassinations all over the world lead the Wei? to the mysterious Koua Academy, a prestigious school meant to mold the leaders of tomorrow. However, all is not as it seems with Koua, with numerous student suicides and an underground cult operating within the school. In addition, an even greater evil lurks beneath the surface, and only the members of Wei?, Aya, Ken, Omi and Yoji, joined by newcomers Sena and Kyo, can rid Koua Academy of evil once and for all.